Lun Yu – The Analects of Confucius

Lunyu VI. 15. (135)

The virtue of Mang Chih-fan in concealing his merit.
The Master said, "Mang Chih-fan does not boast of his merit. Being in the rear on an occasion of flight, when they were about to enter the gate, he whipped up his horse, saying, 'It is not that I dare to be last. My horse would not advance.'"

Legge VI.13.

The Master said, 'Meng chih Fan was not given to boasting. When the army was routed, he stayed in the rear. But on entering the gate, he goaded his horse on, saying, 'I did not lag behind out of presumption. It was simply that my horse refused to go forward.'